There's no doubt about it—Demi Lovato goes wild for her boyfriend Wilmer Valderrama, especially on his birthday.

The "Confident" singer had special birthday plans in mind this weekend for the most romantic member of her wolfpack. Lovato helped celebrate her longtime partner's 36th birthday with a unique outing in the great outdoors.

"Spent the day at Wolf Mountain sanctuary," she wrote on her Instagram. "It was unbelievable. I fell in love with the wolves there and wish I could spend more time with these beautiful, spiritual creatures."

The 23-year-old shared photos of herself, her man and her sister Madison De La Garza hanging out with the wild animals as they soaked in the winter sunshine.

The brunette songstress couldn't help but gush over her "beautiful" man on his special day, penning a lengthy adorable birthday message to him also on her social media account.

"This beautiful man turned 36 today. I thank God every single day that this man came into my life for so many reasons.. But mainly because I'm so blessed to not only have been able to meet such an incredible, loving, funny and inspiring soul, but even more blessed and honored to call him mine," she wrote.

"I love you My Wilmer," she continued. "You deserve the world and more.. Here's to so many more memories."

This is certainly one memory we're sure the lovebirds won't ever be able to forget.